#table{
    width: 600px;
    margin: 50px auto;
}
#add{
    width: 100%;
    height: 30px;
    border: 1px solid #000;
    padding: 10px 0;
    font: 15px/30px "";
}
#search{
    margin-top: 20px;
    width: 100%;
    height: 30px;
    border: 1px solid #000;
    padding: 10px 0;
    font: 15px/30px "";
}
#tab{
    margin-top: 20px;
    width: 100%;
    border-collapse: collapse;
}
#tab th{
    height: 30px;
    border: 1px solid #000;
    background-color: skyblue;
}
#tab td{
    height: 30px;
    border: 1px solid #000;
    text-align: center;
}
